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Difference between a virtual function and a pure virtual function [duplicate]
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A pure virtual function is a virtual function whose declaration ends in =0:
class Base {
// ...
virtual void f() = 0;
// ...
A pure virtual function implicitly makes the class it is defined for abstract (unlike in Java where you have a keyword to explicitly declare the class abstract). Ab...
How can I convert comma separated string into a List
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answered Feb 15 '12 at 20:59
dasblinkenlightdasblinkenlight
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Cannot truncate table because it is being referenced by a FOREIGN KEY constraint?
Using MSSQL2005, can I truncate a table with a foreign key constraint if I first truncate the child table (the table with the primary key of the FK relationship)?
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How can I specify the base for Math.log() in JavaScript?
.../jsref_ln10.asp
– Michael Kariv
Jun 27 '12 at 8:43
4
For bases other than 10, scroll down to CMS'...
Instantiate and Present a viewController in Swift
...ller.
– akashivskyy
Jun 4 '14 at 11:27
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How to find if a given key exists in a C++ std::map
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edited Aug 28 '13 at 9:05
answered Dec 21 '09 at 12:58
a...
defaultdict of defaultdict?
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602
Yes like this:
defaultdict(lambda: defaultdict(int))
The argument of a defaultdict (in this ...
Get loop counter/index using for…of syntax in JavaScript
...tion (value, i) {
console.log('%d: %s', i, value);
});
// Outputs:
// 0: 123
// 1: 15
// 2: 187
// 3: 32
Or ES6’s Array.prototype.entries, which now has support across current browser versions:
for (const [i, value] of myArray.entries()) {
console.log('%d: %s', i, value);
}
For itera...
How to handle ListView click in Android
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David HedlundDavid Hedlund
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